Ways to pump out water to sump tank

[andez07]

Hi all

Isit possible to use a submersible filter or p/head to pump out the water from the main tank to the sump instead of siphon, I-box or other thing?? I read somewhere on the net that it can be used but I can't confirm with the person using it about the pros and cons....

So I seek the opinions of u guys and gals about it .

Pls share any ideas or opinions about it, thanx!!

[terryansimon]

people normally use gravity to drive water into the sump. via durso pipes, overflow boxes, I-boxes and what have you.

I doubt people will use a submersible pump to drive water down to the sump. then again I may be wrong.

[roidan]

yeah..the general consensus is why waste electricity moving water downwards when it can be done by gravity? hehe

[nleong]

ask yourself, what happened if one of the pump fails ? You will have a flood

[AlfaRomeo]

Also, its kinda difficult to constantly adjust the flowrates of both the pumps to achieve a balance for the incoming and outgoing pumps... Most likely you will either drain the sump or tank and will result in a flood i guess...

[SpaTanS]

what if it works something like a OHF ??? the pump sucks up the water ... goes thru a few stackers with media and back to the tank by means of gravity ... ???

some sort of the other way round compare to a sump ...

[terryansimon]

what is with you and your obsession towards OHF! you'll know why OHFs are frowned upon on in marine as the salt spray created is...well not terrible. it just goes everywhere. not condeming you or any others using it lah.

but back to the issue. why use a pump to suck water up or down or anyway in the first place when you can rely on gravity, which is free, and works 24/7 even if an earthquake was to cut of your electrical supply. (=

[untouchables]

what is with you and your obsession towards OHF! you'll know why OHFs are frowned upon on in marine as the salt spray created is...well not terrible. it just goes everywhere. not condeming you or any others using it lah.

but back to the issue. why use a pump to suck water up or down or anyway in the first place when you can rely on gravity, which is free, and works 24/7 even if an earthquake was to cut of your electrical supply. (=

overhead can be adjusted such that the drop is into the water... so spray will be created.

but if use normal ohf, you wont be able to have what sump can offer.

using gravity is only possible if sump is lower than tank.

in my case, tank is on lower tier of 2 tier stand so how to use i-box or other gravity means? my solution is a 2226 to draw water fr tank into canister for mechanical filtration. outlet goes into a sump. sump has outlet at top to return water back into tank using gravity... this requires sump to be slightly higher than tank, which wasnt a problem for me, thankfully.

[hoppinghippos]

In that case yes you do need a pump in your main tank, and if your top sump tank flows by overflow back into your tank, you'll never need to worry about your sump tank flooding, only about your main tank flooding in the event of pump failure, in which case simply ensure the outflow to your sump tank is located as near the surface of the sump tank water level as possible, so when pump fail only a bit of water gets sucked back into your main tank.

[hoppinghippos]

oopss sorry confused untouchable with the inital poster of the thread, paiseh...

anyway to answer andez, yes its possible (and neccessary) if your sump is above your main tank, else its pointless to use a pump if your sump is below.

[Tanzy]

In any case, only one pump should be use in the circulation between sump and tank. You can never ensure that the sump pump and tank pump move water at the same rate. Over time, the pump which is going faster will drain the tank it is in while flooding the other. Overflow works because the amount of water leaving the tank will always be controlled by what get's pumped in.

[andez07]

Thanx Ppl.

For all the opinions given, I say thank you very much. I guess using gravity method is much easier the using a pump considering all the pros and cons.

Thanx again bros & sis.........